Re: 700r4 Real axle ratio

Posted by Jack Vines on 2015/4/1 9:45:00
Quote:
And a 3.07 is really too tall for the types of driving I encounter - too tough on the main bearings.


Very important point few appreciate. While the engine might pull a very tall gear, the main bearings don't like heavy loads at low RPMs.

Back in the day of three-speed trannnies, the small block Chevy never had main bearing problems. Once computers and lockup torque converters enabled pulling hard up hills at sub-2,000 RPMs, main bearing problems were the result.

jack vines

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